Spotlamp mounting



June 23, 1925. 1,543,272

E. G. K. ANDERSON SPOTLAMP MOUNTING Filed July 15, 1922 2 Sheets-Sheet 1 June 23, 1925.

2 Sheets-Sheet 2 |||||hll A'IIIIII Patented June 23, 1925.

ERNST e. K. Ammason, or cmcaeo, rumors.

SPOTLA'MP MOUNTING.

Application flied July 15, 1922. Serial No. 575,364.

To all whom it may concern:

Be it known that I, ERNST G. K. ANDER-' son, a citizen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Spotlamp Mountings; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this specification.

This invention relates to improvements in search or spot lamp mountings, and is herein shown as adapted more particularl for use in a spot lamp mounting designed or closed car bodies wherein the lamp is exterior to the car body and the actuating member for adjusting the lamp about its axes of adjustable movement, is located inside of the car body.

One object of the invention is to produce a mounting of this character, the parts of which are so arranged that the mounting I may be readily applied to car bodies of different contours at the point where the mounting is to be attached to the body, and by means which maintain the adjusting shaft for the lamp in proper alignment with the lamp adjusting mechanism.

Another object of the invention, when embodied in an electrical lamp, is to associate the lamp controlling switch structure with the mounting in a way to adapt the mounting to be fitted to car bodies of differentcross sectionalcontours at the inner, and also at the outer sides of the body wall.

Other objects of the invention are to further improve and simplify spot lamp mountings, and the invention consists in the elements and combination and arrangement of elements, shown in the drawings and ,described in the specification, and is pointed out in the appended claims.

As shown in the drawings:

Figure 1 is a plan view, with parts shown in section, of a spot lamp mounting embodying my invention, showing the support for the mounting in cross section, and as being part of the body wall near the corner of the body.

Figure 2 is a part elevation and part section thereof, the section being indicated on the line 22 of Figure 1.

Figure 3 is a fragmentary, enlarged, longitudinal section of the line 33 of Figure 2.

Figure 4 is a cross section on the line 4--4= of Figure 3.

Fi ure 5 is a cross section on the line 5-5 of Figure 6.

Figure 6 is a longitudinal section of one form of lamp circuit switch in connection wlth which the mountin may be employed.

Figure 7 is a detail 0 the switch hereinafter to be described.

Figures 8, .9 and 10 are fragmentary sectlonal details, illustrating modifications.

As shown in the drawings (Figures 1 and 2), 10 designates a su port for the lamp mounting, which may be a portion of the wall of a closed car. casing. The spot lamp shown is of that general type illustrated in my prior ap lication for United States Letters Patent erial umber 492,036, filed on the 13th day of August, 1921, wherein there is provided a shell 12 for the reel of the extension lamp cord and the lamp casing 11 is supported from said shell through an angular arm 13 which is fixed to the lamp casing and is adapted to turn about a vertical axis at the connection between the shell and arm so as to permit horizontal adjustment of the lamp casing. Fixed to an upstanding portion 16 of the shell 12 is a tubular supporting arm 15, the outer end of which supports the lamp casing and shell. Said arm 15 is 11 designates a lamp mounted to rock at its inner end in an open 1 side of the support 10. The said arm and the connected lamp casing are adapted to be angularly adjusted about the axis of said bracket, as hereinafter set forth. An adapter fixture 20 is interposed between said bracket flange and the outer face of the supportlO. It has a flat outer face to bear on the inner flat face of said flange 18 and is formed at the margins of its body with instanding rims 21 which are adapted to be cut away to conform the inner side of the fixture to the outer face of the support 10, as shown in Figure 1. Said adapter is not herein claimed, but is the subject of a companion application filed by me on the 15th day of July, 1922, Serial Number 575,363.

The support 10 is provided in axial alignment with the hollow bracket 16 with a through opening 10 through which extends an operating shaft 23 for adjusting the lamp casing on.horizontal and vertical axes.

Said opening 10' is made considerably.

larger than said operating shaft. The'shaft 23 is provided inwardly, beyond the support 10, with a hand piece 24, and is connected at its outer end by worm gear and clutch means to the adjusting mechanism of the lamp casing in the general manner shown in my said prior application, Serial Number 492,036, whereby the single operating shaft 23 is capable of universally adjusting the lamp. The present improvements may, however, be adapted to specifically different exterior mountings and adjusting mechanisms.

The tubular support 15 is held from being withdrawn from the bracket 17 by means of a tapered screw stud 25 that is threaded in an expansion ring 26 which fits closely 1n and rocks with said tubular support, said ring being threaded to receive said stud. The bracket 17 is provided with an arcuate slot 27 (Figure 2) outwardly into which the end of the stud 25 extends to hold the parts 15 and 16 from relative axial movement, and also to limit the angular movement of the said tubular support relatively to said bracket.

Associated with the operating stem at the inner side of the support, or car body wall,

is a bearing fitting through which the said shaft extends and in which it is mounted to rock; and said fitting is equipped with means for attaching it to the inner side of said wall or support in away which maintains the operating shaft in proper alignment with the lamp adjusting mechanism at the outer end of the tubular arm 15, regardless of variations of the contour of the inner face of said wall or support. The fitting herein shown embraces the shell of the lamp circuit controlling switch, although the invention is not limited in this respect. Referring now to the particular construction shown, it is made as follows:

The shell 28 of said switch is reduced at its lower end 29 to snugly receive a collar 30, and on said collar is formed an apertured attaching lug 31, as best shown in Figures 1, 2 and 6. The upper end of said shell 28 receives a like member having the form of a closed collar or cap 32 that is provided at one side with an endwise extending attaching lug 33. The said collar members 30, 32, together with their attaching lugs, constitute means for fastening the switch shell to the inner side of the support 10, and both of said collars are capable of angularly turning on the shell relatively to the longitudinal axis thereof. The operating stem 23 extends snugly through an opening in the upper end of the shell below the collar 32, being fitted so as to turn in said opening.

A conductor 35 enters the lower end of the shell 28, and is electrically connected to a tubular metallic eyelet 36 mounted in an insulating disk 37 that is fitted tightly in. the shell 28, and against the shoulder formed at the reduced lower end of the shell. 38 designates a bolt which lies axially in the shell, and is spring held with its head against the upper flanged end of the eyelet 36; Said bolt 38 has close sliding engage ment with the tubular terminal member 40 of the switch that is closely fitted in an insulating bushing 41 which is fitted to turn in said shell. Said terminal member 40 extends beyond said bushing 41 for contact with a fixed tubular terminal member 42 axially within the shell, and fitted closely in an insulated bushing 43 that is itself closely fitted in the upper part of the shell 28. 44 designates a conductor which extends transversely through an opening in the terminal member 42, and is adapted to be pinched into electrical contact with said terminal member, as by a set screw 45 (Figure 5).

Said terminal members 40 and 42 are movable toward and from each other to open and close the lamp circuit by a hand lever 46 which has a reduced end that is threaded through a sleeve 48 rotatably mounted on the switch shell, extends through an oblique slot 49 of the switch shell and into a cavity 50 formed in the insulating bushing 41. Horizontal swinging movement of the lever operates through the oblique slot to separate and close said terminals on each other, .depending upon the direction of movement of said lever.

By reason of the turning fit of the collars 30, 32 on the switch shell in the manner described, provided with their attaching lugs 31, 33, it will be observed that the said switch shell, or equivalent member, may be so attached to the inner .side of the said wall or support 10 as to maintain the operating shaft 23 co-axial with the hollow bracket 17 and tubular supporting arm 15, and thereby maintain the er alignment with the Worm gear and clutch mechanisms, notwithstanding variations of face contoursat the inner side of the wall or support 10, against which face or faces the lugs 31, 33 lie and to which they are directly attached.

As shown in Figures 1 and 2, it is assumed that the opening 10 in the wall or support 10 is co-axial with the operating shaft. As shown in Figure 8, the dotted lines of the shaft, and the full line indicating the axes of the attaching screws, show a permissible divergence of the screws to said shaft, and with the shaft properly alignedv with the co-operating lamp adjusting mechanism. The capacity of the collars 30, 32 to turn, however, enables the attaching lugs 31, 33 to fit squarely against the inner faces of the support to which they are attached.

In Figure 9, collars are shown as dissaid shaft in prop-- of an inner corner of the body member or support 10. In said latter figure, it will be noted that the lug 33 of the upper collar is disposed at an oblique angle to the lug 31 of the lower collar, and that said lugs fit fiat against the respective inner sharp angled faces of the support 10.

The said collars 30 and 32, with their attaching lugs, may aptly be termed adapter collars or fittings in that they adapt the member (the switch shell 28) to variable faces of the Wall or support while maintaining the lamp operating and adjusting shaft in proper alignment.

In Figure 10 is shown a constructlon wherein the opening in the support 10 is made through the corner of the support or wall, and in such a situation the attaching lugs can be sprung or curved to fit in said corner as indicated by the upper lug 33 in said figure when the attaching screws are screwed home. For this purpose, the metal of the upper and lower adjusting collars will be made of a material having some resiliency to adapt it to be deformed under the pressure of the attaching screw.

The conductor cord 44 extends from its connection to the switch terminal 42 through the opening 10" in the wall or support, parallel with the operating stem or shaft 23, and said conductor is connected, exteriorly beyond the said support or wall 10 at 51' to a metallic plate 51 that is supported principally on the inner side of an insulating disc 52, which latter is provided with lugs at its margins to fit in suitable notches at the flanged end of the tubular bracket 17, as best shown in Figure 3. Said plate 51 is fixed to the inner side of said disc 52 by means of a screw disc 53, shown in Figure 4, and by means of a spur or lip 55 that extends through the disc 52, and is clenched on the outer face thereof, as best shown in Figures 3 and 4.

The plate 51 constitutes a fixed commutator plate for engagement by one end of a flat, spiral, metallic brush member 58, the other end of which is attached by a metallic eyelet 59 to an insulating disc 60 which is fixed to the inner end of the tubular support 15 and turns therewith, as best shown in Figure 3. 61 designates a second conductor cord, the bared wire of which is in metallic contact with and fit closely in the eyelet 59. The said conductor cord 61 extends through the tubular support 15 and through an opening in the expansion ring 26 for connection at its outer end to a current conducting element 62, Figure 1, which carries current to the lamp cord reel structure.

I claim as myinvention:

1. A spot lamp mounting for closed body vehicles comprising, in combination with a rocking tubular lamp supporting member,

having means of support on a car body wall. in lme with an opening in said wall, a lamp operating shaft adapted to extend through saidtubular supporting member, and said wall opening, an adapter fitting adapted to the inside of the said body wall and disposed at an angle to said shaft, and havlng an opening through which the shaft extends, and adapters to attach said member to the inner face of said wall, embracingmeans at the ends of the fitting, angularly and independently adjustable on the /axis of the fitting to adapt said fitting to wall faces of varying configurations and to maintain said shaft in lme with said supporting member.

2. A spot lamp mounting for closed body vehicles comprising, in combination with a rocking tubular lamp supporting member, having means of support on a car body wall in line with and opening in said wall. a lamp operating shaft adapted to extend through said tubular supporting member, an adapter fitting adapted tothe inside of the said body wall and disposed at an angle to said shaft and having a transverse opening through which the shaft extends and in which it has bearing, and attaching lugs for attachment to said wall and independently and angularly adjustable on the end of and relative to said fitting.

3. A spot lamp mounting for closed body vehicles comprising, in combination with a rocking tubular supporting member having means for supporting it on the car body wall, a lamp operating shaft extending through said supporting member, an adapter fitting adapted to the inside of the said body wall and disposed at an angle to said shaft and having an opening through which the shaft extends, and 001- I lars independently and angularly adjustable on the ends of said fitting and provided with outstanding attaching lugs adapted to lie against and be attached to the inner face of said wall.

'4. A spot lamp mounting for closed body vehicles comprising, in combination with a tubular lamp supporting member, having means for supporting it on the car body wall, a lamp operating shaft extending through said member, a switch for controlling the lamp circuit adapted to the inner side of said wall, said switch embracing a shell apertured for the passage of said operating shaft, and fastening means independently and angularly adjustable on said shell to adapt them to inner wall surfaces of different contours.

5. The combination with a support, having a through opening, a tubular lamp mounting havin means of attachment to the outer side 0 said support, and a lamp operating shaft extending through said opening and through said tubular mounting, of a switch for controlling the lamp circuit, embracing a shell apertured for the passage of said operating shaft, of collars angularly adjustable on the ends of said shell and provided with lugs adapted by angular movement thereof to be applied and attached to inner support faces of different contours.

6. The combination with a support provided with a through opening, and a tubular lamp mounting supported on one side of said support, with its bore in alignment wit-h said opening, of an adapter fitting arranged on the inner side of said support and provided with an opening in alignment with the tubular mounting, a lamp operating shaft extending through said openings of said fitting and support and through said tubular mounting, and means angularly and independently adjustable at the ends of said fitting to fasten said fitting to the inner side of car body walls of varying contours.

7 In combination, a lamp operating shaft. for a lamp control and an elongated adapter fitting disposed at an angle to said shaft and having a transverse opening through which said shaft extends, and in which said shaft has bearing, and independently and angularly adjustable fastening lugs mounted on said fitting to adapt the fitting and thereby said shaft to supports having varying surface contours.

8. In combination, a lamp operating shaft for a lamp control and an elongated adapter fitting adapted to the inner side of the support and collars independently rotative on the fitting ends and having outstanding attaching lugs.

9. The combination with a support provided with a through opening, a tubular lamp mounting supported on one side of said support with its bore in alignment with the support opening, and a lamp operating shaft extending through said opening, of an adapter bearing fitting for said shaft, and collars angularly adjustable on the said fitting to maintain alignment of said shaft and mounting regardless of inaccuracy of boring said through opening, said collars being provided with attaching lugs.

10. A spot lamp mounting for closed body vehicles comprising a tubular lamp mounting, having means of attachment to the outer side of a car body wall, a lamp operating shaft extending through said mounting and wall, an adapter bearing fitting at the inside of said wall and having angularly and independently adjustable fastening means to attach it to walls having different inner contours, and an adapter fixture between the lamp mounting and the outer face of said wall, having means to adapt it to outer wall faces of different contours.

In witness whereof I claim the foregoing as my invention, I hereunto append my signature this 10th day of July, 1922.

ERNST G. K. ANDERSON. 

